JJazzLab
/ JJazzLab-X

JJazzlab 3
🎵 JJazzLab is a desktop application which automatically generates backing tracks for any song, even complex ones. It’s a jam buddy to have fun improvising at home, learn new stuff or just practice your instrument. It’s also a great tool for teachers.
🎷 JJazzLab is designed to make non-boring backing tracks, backing tracks with variety, rhythmic accents and dynamics. You can start a solo slowly and gradually build up the atmosphere!
💻 Thanks to the underlying JJazzLab-X open-source platform developers can easily add new features and new music generation capabilities.
- Instant generation of a Midi backing track with drums, percussion, bass, piano, guitar, pad, horn section, …
- Fine tuning of the backing track per song part: rhythm variation, intensity, muted instruments, drum fills, tempo factor, custom phrases, drums transform…
- Play from anywhere, loop selected bars
- Play transposed (e.g. for sax or trumpet players)
- Any song structure: intro, chorus, 1st coda, etc.
- Adjust tempo, transposition, choose and solo/mute instruments
- Import user tracks
- Support for multi-rhythm backing tracks, possibly with different time signatures
- Export to Midi file, the full backing track or a single instrument track
- Easy Midi-to-MP3 conversion via export to Midi file
- Customizable click and pre-count
- Chord lead sheet editor, song structure editor, chord symbol editor, mix console, song memo editor
- Multi-file editor with dockable windows
- Intuitive user interface with unlimited undo/redo, copy/paste between songs
- Free placement of the chord symbols (quantified or not), off-beat chord symbols anticipation
- Support all pop-rock and jazz chord symbols, plus user-defined chord symbols
- Edit chord symbol musical rendering: underlying harmony, accent type, harmony variation during solos, chord symbol substitution, …
- Drag & drop support to import/export Midi files
- Customizable song template
- Customizable UI colors and fonts
- Print chord lead sheet and song structure
- Support for Yamaha style files (SFF1 & SFF2 format), access to thousands of free styles on the web
- Hundreds of embedded rhythms in the installer
- Support for “YamJJazz Extended Yamaha" style files for even more variations per style
- Open architecture: new rhythm generation engines can be easily added via plugins
- Show backing track notes in real time
- Show selected chord symbol notes and scales
- Piano keyboard
- Guitar diagrams with most common chords, open/close voiced chords, inversions
- Recognize chords played on Midi IN and update the backing track in (pseudo) real-time
- Automatic generate improvisation guides on your chord leadsheet
- Based on Hal Crook's reference book "How to improvise"
- Connect to any audio engine via Midi: SoundFont player (recommended with the JJazzLab SoundFont), Java internal synth, external synth, VST host via virtual Midi port such as ‘LoopBe1’
- Compatible with GM/GM2/XG/GS instruments
- Compatible with any Midi instrument via Cakewalk instrument definition files (.ins)
- Automatic drums/percussion drum map remapping from Yamaha XG key map to GM/GM2/GS key maps
- Optimized JJazzLab SoundFont for a high-quality rendering and automatic instrument selection
- Ready-to-use presets for VirtualMidiSynth (Windows) and FluidSynth (Linux)
- User-defined default mix per rhythm
- User-defined default instruments
- Band-In-A-Box lead sheet files
- musicXML lead sheet files
- Impro-Visor lead sheet files
- Song memo with hyperlinks opened upon song loading
- Easily add new features thanks to the open-source pluggable architecture
- Based on the Netbeans application framework
Last modified 1yr ago